I've been a member of this site for 4 years now and whilst I've noticed there are a lot of atheists there are also many theists too. I would take a guess though that the vast majority are now agnostic and just want to get on and have a happy enjoyable life without being bothered by anything to do with religion.
I do think it's a shame though when someone new comes here still expressing a faith in God and being lambasted for it (unless of course they are trolling). I don't see it happen often but occasionally it does. As my username denotes, that is how I felt when I discovered TTATT. Having my faith in God challenged at the outset would have been something I couldn't have handled at the time. It's a long slow process for many to challenge dearly held beliefs for so long. It's important to be as welcoming as possible to newcomers and not bombard them with atheism at the outset.
Nice post Rebel